{"id":"CVE-2026-89111","summary":"OAuth2 SSRF vulnerability in SAP Cloud SDK for Python","details":"The SAP Cloud SDK for Python contains an OAuth2 SSRF vulnerability affecting multi-tenant BTP applications. An attacker who controls the tenant_subdomain parameter can redirect OAuth2 token requests to an attacker-controlled server, causing client credentials to be exfiltrated.","aliases":["GHSA-4mv3-jxxm-9cx2"],"modified":"2026-10-16T02:30:35.154519341Z","published":"2026-10-13T00:24:28.269Z","database_specific":{"cwe_ids":["CWE-918"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89111.json","cna_assigner":"sap"},"references":[{"type":"WEB","url":"https://url.sap/sapsecuritypatchday"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89111.json"},{"type":"ADVISORY","url":"https://github.com/SAP/cloud-sdk-python/security/advisories/GHSA-4mv3-jxxm-9cx2"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89111"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/sap/cloud-sdk-python","events":[{"introduced":"fc67a8f4c01401fd4f5dd709bf898f0ec345f5d1"},{"last_affected":"fc67a8f4c01401fd4f5dd709bf898f0ec345f5d1"}],"database_specific":{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"sap-cloud-sdk \u003c 0.45.2"},{"last_affected":"sap-cloud-sdk \u003c 0.45.2"}]}}],"versions":["sap-cloud-sdk \u003c 0.45.2","v0.45.2"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89111.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N"}]}